Pump.



E. A.. McG-URDY.

PUMP. AIPLIOATION IILBDMAR.20, 1913.

Patented A1012?, 191% 2 SHEETS-SHBET 1.

INI/Ewan Wl T/VE SSE S ERNEST A. MCCUR-DY, 0F TAFT, CALIFORNIA.

vPUMP.

Application led Matic-h 20, 1913. Serial No. 755,729.

T0 all whom 'it may concern Be it known that I, ERNEST A. MCCURDY, citizen of the United States, residing at Taft, in the county of Kern and State of Cah- 'ornia, have invented certain vnew and use# ful Improvements in Pumps, of which the following is a specification, reference-being had therein to the accompanying drawing. This invention relates to a pump which is intended to be used in connection with very deep wells. n

One of the objects oi the invention'is to provide a pump which may be us-ed in connection with a .very deep oil or water well and which will operate very eiiiciently.

Another object of the invention is to provide ladevice for securely holding the pump` in position thus prevent-ing 1t from being worked loose by the operation of pumping. l

Another object of the invention is to provide an improved type of pumping plunger so constructed that into the working barrel and then 'forced through the lunger and outvthrough the top of the barrel.)

Another'objeet of the invention is to provide the barrel with side pins which will prevent the pump Jtrom turning, and thus causing its several parts to work loose.

Titi these land other objects in view this invention consists of certain novel combinations, constructions, and arrangements of parts as will be hereinafter 'fully described and claimed.

In the accompanying drawings Figure 1 is a View showing the casing partially in section with the remaining portions of the pump in elevation. Fig. 2 is a vertical seetional view through the pump. Fig. 8 is a vertical sectional view through the upper portion of the casing shown in elevation in Fig. 1. Fig. et is a transverse sectional view along the line 4-4, in Fig. 2, Fig. 5 is transverse sectional view alongthe line 5 5, in Fig. 2. Fig. 6 is a transverse sectionalview along the line 6*(3, in Fig. 2. Fig. 7 is a top plan view of the pump. Fig. 8 is a perspective view of the plunger.Y Fig. 9 is a perspective view of the slip spider which causes the setting slips to grip the easing.

Referring to the accompanying drawings ing apparatus Specification YofnLetters Patent.

the oil may be sucked Patented Apr.. 7, 19ML.

it will be seen that a casing 10 is placed in the well and extends to such an extent that its lower end portion is embedded in the oil or water 11. The upper end of the casing 10 extends above the ground and is provided with a threaded Vend Vportion upon which there is screwed the' cap' T 12 from which there extends the usual arm v13. This cap T is pro-vided with pivot ears 14 with which the threaded bolts 15 are connected so that when the sectional packing head 16 is put in place the bolts may be passed through openings formed in the packing head, the packing head being secured in place by the tail nuts 17. A gland 18 is carried by the packing head, and a polish clamp 19 which is secured to the pumping line 20 by means of the set screws 21 is slidably mounted in this gland 18, thus causing the pumping line to run freely. A second gland 22 is mounted between the sections of the packing head 16. y

to permit the setting line. 23 to run easily.

The pumping mechanism is mounted in the lower portion of the casing 10 and comprisesa set pipe 211 provided with longitudinally extending slots 25 and having threaded end portions with which there are connected the cap 26 and the collar 27. A packing ring 28 surrounds the set pipe 24 just above the collar 27 and is held in place `by a protecting washer 29. This washer'. is placed above the packing ring for the purpose of preventing the packing ring from working up the pipe 24 and also to protect it from contact with `the pins to be hereinafter described, and thus prevent the pins'from wearing the upper portion of the packing ring.

A -slip spider 30 which is shown in Fig. 9 is provided with-a hollow externally threaded neck and this neck is screwed into an by the ribs 35 traveling in the grooves 32 and are provided with recesses' 36* in which. the outer end portions of pivot lugs 37 forming levers fit. These levers 37 are mounted upon pivot pins 38'and extend into the slot 33 so that they may enter openings formed in the anchor pipe 39 and thus be moved by the anchor pipe to bring the slips into and out of engagement with the casing 10. It should b e noted that the ends of the levers 37 are curved as well as the inner walls of the pockets 36, thus permitting the levers to move readily. A collar 40 -connects the lower end of the anchor pipe with the suction nozzle 41 and also serves as a means for engaging the lower end of the spider when it is desired to remove the device from the casing.

A working barrel 42 is mounted in t-he set pipe 24 and has its lower' end connected with the inner end of the anchor pipe 39 by the reducing collar 43. A packing ring 44 sur rounds the anchor pipe 39 just beneath the collar 43 and constitutes a cushion for supporting the working barrel 42. The inner end portion of the anchor pipe is formedf into a valve seat 45 and a ball valve 46 is mounted in the cup shape inner end portion of the anchor pipe and rests upon the valve seat,thus permitting the oil or water to be sucked up through the anchorvpipe into the working barrel but prevents it from passing back into the bottom of thewell.' Pins 47 are threaded into 4shoulders 48 and extend through the slots. 25 above` the protecting ring 29. It will thus be seen that these pins will aifordmeans for assisting in withdrawing the pump from the well and will also act as supports for the working barrel, and as a means for applying weight to the packing ring 28 to cause it to fit tightly against the casing 10.- The upper end of the working barrel is slidable through the ca 26 and carries a perforated cap 49 whicpermits the'l oil or water Ain the barrel to be forced out into the' casing 10 above lthe pump.

The plunger 50 which is illustrated in Figs. 2 and 8 is provided Awith a reduced inner end 51 upon which the cups 52 and spacing washers 53 Vare mounted. These cups are preferably formed of Aleather or some other suitable material and are held in place by a nut 54 screwed upon thepend of the plunger. A valve housing 55 is threaded upon the upper end `of the plunger and-l ca'rries a ball valve 56, thus permitting the oil or water in the working barrel to be forced through the plunger upon the down `stroke and into the upper portion of the working barrel. 'I Upon the return stroke the cups 52 will force the water in the upper portion of the working barrel out of theA openings in theperforated cap 49 into the The pump rod 57 passes throughthe percause the pump to work properly. The

pump rod is of a suitable length and has its -outer end connected with the pipe line bya suitable screw eye 58. A-guiding disk 59- which is perforated is rigidly secured upon the upper end portion of the pump rod by means ofthe collars 60 and held in place by the set screws 61l and prevents the pump rod from becoming tangled .with the sett-ingline 23 which line passes through an opening 62v in theedge portion of the vguiding formed disk. The operation of this ,pump is as follows: The casing 1 0 is4 driven into the well in the usual manner to a point below the water level and the pumping device is then lowered into the casing until the anchor pipe is em'- bedded in the water as shown in Figs, l and 2. This pumping -devicev is lowered by means of the line 23 with the line 20 heldin `such a position that` the Working barrel will' be drawn upwardly, thus raising the anchor pipe and permitting the levers 37 to be rocked, thus holding the slips 34 out of engagement with the sides ofthe casing. When the Apumping device is at the desired point the line is. released and this will cause vthe working barrel to be lowered, thus moving the levers 37 to force the slips 34 up the' spiders and bringing them into engagement with the sides ofthe casing. The weight of the pumping device will cause the teeth of these slips to grip the sides of the casing, thus preventing the pumping device from slipping. From an inspection of Fi 2 it will be seen that when the device is 1n this position that the pins 47 by 'pressing upon vthe ring 29 compresses the packing ring 28, y thus forcing it tightly into engagement with the casing 10 and preventing water-or oil in the upper portion of the casing from leaking back into the bottom of the well.` It 'will also be seen that when the collar 43" restsv l upon the packing ring 44 that it compresses 1 this ring and thus causes a water-tightjoint between the anchor pipe 39 and spider 30.

When it is desired to raise the water from the bottom ofA the well the line 2Q is drawn upwardly by a suitable mechanism and this raises the pump rod 57 Awhich rod carries with it the plunger 50. As the plunger rises it forms a suction which draws the water through the anchor pipe past the valve 46' i. and into the lower portion of the working barrel. The pump rod is then permitted tol descend and this will cause the Water in the bottom of the Working barrel to be forced through the plunger 50 out through the sov valve housing 55 and into the lupper portion of the working barrel. Upon the plunger being again drawn upwardly the cups 52 will cause t-he water to be forced through the perforated cap L9v and into the casing 10 above the pumping device. When this eperation has been repeated a sufficient number of times the water in the upper portion of the casing l0 will be raised to such an extent that it will be caused to flow out through the outlet arm 13 and can then be conveyed to any suitable place by any desired conduit. When it is desired to remove the pumping device the packing cap 16 may be removed and upon drawing the lines 2O and 28 upwardly the plunger will be brought into Contact with the cap 49, thus raising the Working barrel to remove the weight of the barrel from the ring 29 and cause the levers 37 to be rocked upon their pivot pins 38, thus forcing the slips 34 out of engagement with the casingv l0. The pumping device will then be free from the casing and can be easily withdrawn from the casing by simply winding the lines and drawing the pumping device out through the upper end of the casing.

Having thus described the invention what is claimed as new, is z-v h l. In a pump, a casing, pumping means in said casing comprising a set pipe, a spider connected with said set pipe, an anchor pipe passing through said spider into said set pipe, gripping slips slidably connected with said spider, levers pivotally connected with said spider and engaging said anchor pipe and slips whereby movement of said anchor pipe will move said slips into and out of engagement with said easing, a working barrel slidably mounted in said set pipe and connected with the inner end portion of said anchor pipe, an inwardly opening valve at the inner end ofsaid anchor pipe, and a plunger slidably mounted in said working barrel whereby iuid may be sucked into said working barrel and forced past said plunger and forced from the upper end of said barrel into said casing.

2. In a pump, a casing, pumping means in said casing comprising a set pipe, a spider connected with said set pipe, gripping` slips carried by said spider, an anchor pipe pass-- ing through said spider into said set pipe, operating means for said slips operated by said anchor pipe, a packing surrounding said set pipe, a packingsurroundingthe inner end portion of said anchor pipe, aworking barrel slidably mounted in said set pipe, a collar connecting said working barrel with'said anchor pipe and resting upon the packing ring surrounding said anchor pipe, an inwardly opening valve carried by said anchorpipe, arl-ns extending from said working barrel through said set pipe for compressing the packing" ring surrounding said set pipe, a pumping plunger slidably mounted in said working barrel, and an outwardly opening valve carried by said plunger.

3. ln a pump, a casing, pumping means in said easingv comprising a Set pipe, an anchor pipe extending into said set pipe, va working barrel slidably mounted in said set pipe, a packing ring` surrounding said anchor pipe, a collar connecting said working barrel with said anchor pipe and resting upon said packing ring for compressing the same, an inwardly opening valve carried by .said anchor pipe, a packing ring surrounding` said set pipe, means extending from said working barrel through said set pipe adapted to compress said last mentioned packing ring, a plunger slidably mounted in said working. barrel, and an outwardly opening valve carried by said plunger.

4. ln a pump, a casing, pumping means in said easing comprising a set pipe, a spider connected with said set pipe, gripping slips carried by said spider, operating means for said slips, packing rings carried by said set pipe, common means for compressing said packing ring and manipulating the operating means for said slips, and apumping plunger.

In a pump, a casing, pumping means in said casing comprising a set pipe, a cap for said set pipe. an anchor pipe extending into the lower end portion of said set pipe,aworking barrel extending through thecap of said set pipe into the interior thereof and having itsinner end connectedwith said anchor pipe, an inwardly opening valve adjacent the inner end of said anchor pipe,aperforated cap for said working barrel limiting the inward movement of said barrel, a plunger slidable in said working barrel, a pump rod extending through said -last mentioned cap and engaging said plunger, and an outwardly opening valve carried by said plunger.`

6. A pump comprising a casing, pumping means in said casing, a pump rod extending through said casing and having its inner end -connected with said pumping means, a perforated guiding disk adjustably mounted upon said pump rod, an operating line connected with said pump rod, and a second line passing through said guiding disk and connected with said pumping means.

7.v A pump .comprising a casing, a fitting at the inner end of said casing, bolts connected with said sleeve, a packing head fittingin said'tting and provided with a iange overhanging said fitting, said bolts being passed through the flange of said packing head and having securing means engaging said head to hold the same in place, a gland carried by said head, a fitting in said gland, aline passing` through said last mentioned tt-ing and having said last meniioned sleeve adjustably connected therewith, piimpinglnonns in said casing and connoctml with said line, ay second glu-.nd carried by said head, and a second line passing through said second gland and having its inner end connected with said pumping means.

ERNESTA. MCC'URDY.

Witnesses FRED J. MUHOY, C. C. FARROT. 

